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Flight Reliability

UA 4458 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4458 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

77%
Arrive within 15 minutes
14 min
Average arrival delay
0.8%
Cancelled
9 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(53 flights)
  • Tue70%(53 flights)
  • Wed81%(53 flights)
  • Thu77%(51 flights)
  • Fri79%(52 flights)
  • Sat88%(51 flights)
  • Sun74%(49 flights)
On-time by departure window
  • 6–9 AM65%(17 flights)
  • 9 AM–12 PM100%(10 flights)
  • 12–3 PM77%(328 flights)
  • 3–6 PM—(7 flights)
On-time trend by month
85%
May

Jun 83% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202568%31
August 202581%31
September 202587%30
October 202594%31
November 202569%29
December 202553%30
January 202676%29
February 202689%28
March 202660%30
April 202683%24
May 202685%39
Departures on time
79%
Diverted
0%
Flights flown
362
Months covered
12

Keep nerding

Based on 365 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.